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Wednesday, February 13th 2013, 3:18pm

Author: nine9s

Amusing: 26 stretches (reasons) of why RP backflows should be banned.

In researching RPZs, I found the following web site (link below.) It is by a group of people evidently trying to fight backflow preventer requirement in their area. I cant believe these people would seriously make these claims (for example they claim RPZ and other backflow devices are against Homeland Security Laws because they make it easy for terrorists to inject toxins into our water supply, so if you put one on your house you are aiding terrorists) but I guess they thought/think it will pers...

Monday, February 11th 2013, 7:47pm

Author: nine9s

which brand model RPZ for a system on a private well?

I noticed that my commode tanks have sand in them, so it sounds as if I should not use a RPZ. I had a PVB for years and years but I suspect its placement might have been lower than the highest sprinkler head point. I should be abel to haev run higher up. I am under no regulations, so I can use whatever. Is the PVB safe - does it do a good job? I use no fertilizer nor herbicides/pesticides, but my neighbor loves to spray Roundup and sprays some near some of my sprinkler heads.

Monday, February 11th 2013, 7:47pm

Author: nine9s

which brand model RPZ for a system on a private well?

I noticed that my commode tanks have sand in them, so it sounds as if I should not use a RPZ. I had a PVB for years and years but I suspect its placement might have been lower than the highest sprinkler head point because my yard slopes. How do you measure determine the highest point relative to the placement of the PVB? I am under no regulations, so I can use whatever. Is the PVB safe - does it do a good job? I use no fertilizer nor herbicides/pesticides, but my neighbor loves to spray Roundup ...

Monday, February 11th 2013, 6:21pm

Author: nine9s

which brand model RPZ for a system on a private well?

I am replacing a Febco 860 that is failing. It is for a sprinkler system (mostly weekly use - high use would be twice a week for 3 hours each time.) My house uses a private well, so water pressure is routinely fluctuating with the on/off of the well pump (goes off around 65 PSI and on at 40 PSI.) I have a Watts 009M2 on back-order so I can cancel it. I am concerned because I have found some old messages here indicating that the Watts 009 does not handle changing pressure well. Is that correct - ...